Crusher.



A. NIEDERMEYER 6: R. BBRNHARD.

GRUSHEE.

APPLICATION FILED AUG 2a 1908.

lfiifio Patented Feb. 25, 1913.

2 SHEETS-SHEBT l A. NIEDERMEYER (K; R, BERNHARD.

GRUSHER.

APPLIGATION FILED AUG.28,1908.

Patented Feb. 25, 1913.

LQ54J35,

2 $HEETS-SHEET 2.

Eff; 2,

order to permit t BEST AVAZLABLE 6GP.

UNlTED STATES PATENT OFFICE. ARTHU NIEDERMEYER annrtfcrr zi a is siaiiirzim. or MILWAUKEE, WISCONSIN.

. ASSIGNORS TO POWER AND MINING MACHINERY COMPANY. OF JERSEY CITY, NEW

JERSEY, A. CORPORATION OF NEW JERSEY.

CRUSHER.

To all whom, it may concern:

lte it known that we, Aa'rnua Nncmca- Msvaa and RICHARD lh-zasnaao, both citizens of the United States. residing at Milwankec, county of Milwaukee, and State of Wisconsin, have invented certain new and useful Improvements in Crushers, t'ully described and represented in the following speciticatit'ai and the accompanying drawin 's, forming a part of the same.

lhis invention relates particularly to that class of crushers for stone, ore and the like, known as yratory crusher-s, the especial object of the invention being to provide a more compact, lighter and stronger machine of this class, and further to provide a machine which may be adjusted for any desired driving and delivery arrangement, thus avoiding special construction of machine parts to meet ditl'erent conditions.

In the preferred form of machine cmbodying the invention, that portion of the machine below the crushing head is shortened by omitting the usual delivery chute and chamber between the crushing head and driving mechanism, and arranging the driving mechanism directly below the crushing head with space between the driviugmcchanism and casing for the delivery of the crushed material around the driving mechanism to a discharge chute at the bottom of the machine. The crushed material is received by a rotatin' disk below the head and thrown off the disk by centrifugal force, the top surface of the disk being inclined to aid this action. The disk is preferably formed by the main gear, which for this purpose has its teeth on its under side, the crushed material being delivered from the to of the gear to the annular passage surroun ing the driving mechanism, the gear and hub being constructed to form a chamber inclosin" and protecting the driving gears and ot 101 parts. In order to permit the counter shaft to be set in any desired position relatively to the main shaft, the portion of the casing inclosing the driving, mechanism, which carries the counter shaft, is separate from the upper casing inclosing the head and is united to the upper casing by a cireular symmetrical joint, so that the lower casing and counter shaft may be positioned as desired relatively to the upper casin In to discharge in any de- Patented Feb. 25,1913.

Serial No. 450,646.

sired direction, the hop er casing at the bottom of the crusher, w iich carries the dis charge spout, is made separate from the lower casing and is secured to this lower casing by a circular synnnetrical joint, so that the spout may be set to deliver in any direction without regard to the position of the lower casing and counter shaft.

The invention includes, in addition to the general features above outlined, certain features of construction and combinations of parts, all as fully described hcrcaftc and particularly pointed out in the claims.

In the accompanying drawings, which show a gyratory crusher of a well known type embodying all the features of the invention in their preferred form, as applied to such a crusher: Figure l is a side elevation of the crusher looking from the counter shaft side. Fig. 2 is a vertical central section of the crusher, Fig. 3 is a horizontal section on the line 3-3 of Fig. 2. Fig. i is a detail vertical section on the line t of Fig. 3.

Referring to said drawings, A is the upper casing or shell carrying the spider ll, and (l the lower casing or shell inclosing the driving mechanism, with the hopper casing 1) below it carrying the discharge spout I). The crusher shaft F carrying the crushing head is shown as suspended in the s )idcr 15 by the well known suspension of tile McGully )lllClliS, but. may be supported otherwise wit do the invention. The counter shaft It is mounted in the coantershaft bracket 1 on casing C and is shown as driven by the usual pulley K.

The upper and lower casings A, C are secured together by the circular joint 10, symmetrical throughout, so that the lower casing C may be turned to any position relatively to the upper casing A, and the counter shaft ll thus adjusted at any desired angle relatively to the main shaft. The two casings A, G are shown as bolted together by bolts 1, and the upper casing is provided with extended flanges forming brackets which will rest on the foundation or supports X thereon, so that the bottom casing with the driving mechanism may be removed downward from the upper casing carrying with it the counter shaft and gearing. The lower casing C and hopper casing D are secured together by a circular {oint 11 symmetrical throughout, so that the iopper with its discharge spout- E may be turned to any desired position relativel to the casing. C, and the hopper casing is shown as secured to the casing C by bolts .2.

Referring now to the specific construction of the parts within the casin" C, the shaft is actuated by the ecctntric i. which muv be of the usual or any suitable form, and is mounted to rotate within the fixed central hub M carried by arms 12 extending inward from the op )osite sides of the easing C. The main driving gear N has its top surface 13 immediately below the crushing head G, which surface is inclined outward, and the driving teeth 3 on its under side engaging the pinion O on the counter shaft II. T to casing C is of such size as to provide an annular delivery space surrounding the ear N and hub M, throu h which the crus ied material passes from tie top of the rear N downward around the drivin niecianism to the hopper D and spout To inclose and protect the gearing and eccentric. the gear N has an outer flange 4 and the hub M a flange 14, co-acting to inclose the gearing except above the counter shaft H and exclude grit and similar matter from the gear chamber. The counter shaft bearing is provided with a flange 15 which co-acts with flange 4 on the gear to practicallv close the space above the counter shaft and this flange 15 also co-acts with horizontal and vertical flan es 17 on the lmb M to form an oil tight ciamber inclosing the pinion in which the pinion may rotate in oil. The hub M is also provided with a bottom ea 16 to retain the lubricant. guard 18 will preferably be secured to the to of the counter shaft bearing to dellect t-ie crushed stone to each side of the bearin and the arms 12 will preferably be forme with inclined top surfaces, as shown in Fig. 4, so as to offer small resistance to the passage of the crushed stone downward to the discharge.

The oil bonnet and dust cap for the eccentric consists of the steel collar 5, which fits the shaft so as to rotate therewith but ermit the shaft to slide through the co lar. This collar 5 has a horizontal flange or rib, over which takes a flange on a ring 6 bolted to the top of the eccentric, so that the collar is thus held down and prevented from rising with the shaft when the latter is adjusted. Below the bonnet or collar 5 is a lubricant cap, which will preferably be filled with grease.

As the driving pressure is on the under side of the ear it is necessary to provide some means or holding the gear from lifting. This result is secured by providing the gear N with a-fiange 7 taking under a shoulder on the eccentric, and the eccentric is prevented irom lifting by a bottom flange or ring 8 bolted on the eccentric, which enga es the bottom of the hub M.

t will be seen that the main shaft of the crusher is very short, as compared with the shafts of other gyratory crushers, so that the tendency of the shaft to 'defiect under heavy strainsis largely reduced. This construction materially strengthens the machine, as the shaft in previous crushers 1s one of the weakest parts, and a stronger shaft of smaller diameter is possible. The eccentric is mounted close to the crusher head, also, which secures a very ri id construction. The shortenin of the shaft not only reduces largely the might and weightof the machine, but also makes it much easier to dismantle the n'lachine on account of the rreutly reduced weight of the machine. lhe oil bonnet construction shown provides for all joints being metal to metal, which with the lubricant l'orccd out of the bearing prevents the entry of dust or grit. The provision for adjustment of the counter shaftbearing at any desired angle to the main shaft, and the adjustment of the hopper casing and discharge spent as desired, are important, as enabling a single standard machine to be used under any driving and delivery conditions. The removing of the eccentric and gearing withoutremoving the shaft is convenient, as the whole lower casing C may be dropped from the casing A with all he driving mechanism, llitllltling the counter shaft, and the eccentric and main gear then withdrawn from the top of the casing C.

It is to be understood that the invention is not to be limited to the particular construction or arrangement. of the devices shown embodying the invention, as many modifications may be made within the scope of the claims. Vhile the invention has been made in connection with und is especially intended for that. class of crushers known as 'yratory crushers, it will be understood hat the broader features of the invention are applicable also to crushers of other classes, and the claims not limited to gyratory crushcrs are intended to be so construed.

What is claimed is 1. In a crusher, the combination with the crushin devices, of a rotating disk below the crus ling devices arranged to receive the crushed material and a casing inclosing the rotating disk with an annular delivery space surrounding the disk between the disk and casing for the delivery of the crushed material below the disk.

2. In a crusher, the combination of a vertical crushing head, a rotating disk below the crushing head of larger diameter than the head and having its top surface inclined outward, and a casing inclosing the rotating disk with an annular deliverv space surrounding the disk between the disk and casing for the delivery of the crushed material below the'disk.

' 3. In a crusher, the combination of avertical crusher shaft and crushing head thereon, a gear on the shaft below the crusher head having its teeth on the under side and its top surface arranged to receive the crushed material, driving mechanism for the gear and shaft, and a casinginelosing the gearing with an annular space about the gearin r between the gearing and casing for the delivery of the crushed material below the driving mechanism.

4. In a crusher, the combination of a vertical crusher shaft and crushing head thereon, a gear on the shaft below the crusher head having its teeth on the under side and its top surface arranged to receive the crushed material, said gear having an annular flange outside the teeth, a fixed hub surrounding the shaft below the gear and having a flange co-acting with the gear flange to form a closed chamber for the gearing, and a casing inclosing the chamber between the chamber and casin with space about the chamber for the delivery of the crushed material below the gear-in".

5. In a gyratory crusher, the combination with the vertical crushing head, of a rotating disk below the head of larger diameter than the head and arranged to receive-the crushed material, an eccentric and driving gearing below the disk, and a casing inclosmg the caring with space surrounding the gearin etwecn the casing and gearing for the de ivery of the crushed material below the gearing.

6. In a gyratory crusher, the combination with the vertical crushing head, of a'rotating disk below the head of larger diameter than the head and arranged to receive the crushed material, an eccentric and driving gearing below the disk, means for forming a closed chamber for the eccentric and gearing amt a casing inelosing the chamber with s area between the casin and chamber for the delivery of the ClUS'ltd material below the gearing.

7. In a crusher having driving mechanism below the crushing devices, including a vertical driven member and counter shaft, the combination with an upper casing inclosing the crushing devices, of a lower casing inclosing the driving mechanism and carrying the counter shaft, said casings being united by a circular symmetrical joint, whereby the lower casing and counter shaft may be set in any desired position relatively to the upper casing.

8. In a crusher having driving mechanism below the crushing device, including a vertical driven member and counter shaft, the combination with an up or casing inclosing the crushing devices, 0 a lower casing inclosing the riving mechanism and carrying the counter shaft, said casings being united by a circular symmetrical joint, whereby the lower casing and counter shaft may be set in any desired position relatively to the upper casing, and a hopper below the lower casing having a delivery spout and secured to the lower casin by a circular symmetrical joint, whercliy the spout may be set in any desired position relatively to the lower casing.

t). Ina crusher, the combination with an upper casing inclosiug the crushing devices, of a lower casing inelosing the driving mechanism and carrying the counter shaft, said casings being united by a circular symmetrical joint whereby the lower casing and coimtershaft may be set in any desired position relatively to the tpper casing, and flanges on the upper casi'ig ext-ending outside the lower :asiug for supporting the crusher and permitting the lower'casing to be removed downward.

10. In a gyratory crusher, the combination with the crushiu devicts and the eccentric, main gear and tile counter shaft and its gear below the crushing devices, of an upper casing inclosing the crushing devices and by which the crusher is supported, and a lower casing removable dmvnward from the upper casing between the crusher supports and carrying the. eccentric, gearing, and counter shaft.

ll, In a gyratory crusher the combination with the crushing head amt vertical shaft carrying the crushing head. and the eccentric. main gear, and the counter shaft and its gear below the crushing head. of an upper casing inclosing the crushing head and by which the crusher is supported, and a lower casing removable downward from the upper casing and shaft between the crusher supports and carrying the eccentric. gearing. and counter shaft, said lower casin; being open at the top for the receipt. of the crushed material and removal of the main gear and eccentric.

12. The combinatirm with the crusher shaft F. of main gear N having its teeth on the under side, eccentric L. and hub M having a flange co-aeting with the gear N to form a chamber inclosing the gear teeth and eccentric. substantially as described.

13. The combination with the crusher shaft I. of main gear N having its teeth on the under side, eccentric L, hub M having a flange co-acting with the gear N to form a chamber inclosing the gear teeth and eccentrio, counter shaft gear 0 and its shaft bearing, and flanges on the counter shaft hearing and hub forming a closed chamber for the counter shaft gear, substantially as described.

14. The combination with the crusher shaft F, eccentric L and hub M, of gear N having flange 4, flange 14 on the hub below gear ilan e' 4, llanges 17 on the hub,- and counter siaft beariu having flange 15 engaging flanges 1 Tit'o iorma closed chamber, substantially as described.

.15., The combination with the crusher shaft F, of easing 0, arms 12 extendin inward from the casing, and central hu M. carried by said armsand supportino. the shaft driving mechanism, with de ivery space within the casing around and below the hub, substantially as described.

10. In a qvratory,crusher, the combination with i ie crusher shaft and crushing head thereon, of shaft drivingmechanism below the head, an outer casing below the head separated from the driving mechanism to provide a delivery space extending about the driving mechanism inside the casing and means including a part of the drivin mechanism for inelosing the driving mcc ianism within said delivery space.

ii. In a yratorv crusher, the combination with the crusher shaft and crushing head thereon, of shaftdriving mechanism including a. main gear and countershaft gear, an outer casing below the head separatedfrom the driving mechanism to provide. a delivery space extending about the driving mechanism, and means for inclusing the gearing within said delivery space.

18. In a gyratory crusher, the combination with the shaft and crushing head thereon, of an eccentric and eccentric hub below the head, a main gear and eountershuft gea r below the head, an outer casing separated from the eccentric hub to provide a delivery space extending about the hub inside the casing, and means for inclosing the gears for protection from the crushed material.

in testimony whereof, we have hereunto I set our hands, in the presence of two subscribing witnesses.

'it messes L. F. Sxrnrza, HUGO H. Gi-IISHN ill-ll x nu.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

' Washington, D. G. 

